Mouth wiper for typesetting machines



Nov. 16, 1937. D. J. FOURNET MOUTH WIPER FOR TYPESETTING MACHINES Filed May 21, 1956 2 Sheets-Sheet l Nov. 16, 1937-. D. J. FOU RNET MOUTH WIPER FOR TYPESETTING MACHINES Filed May 21, 1936 2 Sheets-Sheet 2 29,. it W.

tion.

Patented Nov. 16, 1937 I ,MOUTH WIPER FOR TYPESETTING MACHINES Donald J, Fournet, Lafayette, La.

Application May 21, 1936, Serial No. 81,082

i 11 Claims. (Cl. 199-62) f .l This invention relates to typesetting machines, particularly Mergenthaler machines, and it has special reference to a wiper for wiping the mouth of the metal pot of the machine. I

One object of the invention is to provide an improved mouth Wiper which will automatically wipe upward and downward over the mouthpiece of the metal pot, and thereby keep the same free and clean of any accumulation of molten type metalfflakes or fins, after each casting opera- A further objectof the invention'is to provide a mouth wiper which is of relatively simple and cheap construction, and which may be applied to machines in use without in any way modifying their form or mode, of operation.

A still further object of the invention is to provide a mouth wiper actuated by standard parts of the typesetting machine whereby its operation of wiping the mouthpiece of the metal pot will be accomplished in timed relation to the axial reciprocation of the mold disk of the machine, as is necessary for proper functioning of devices of this general type.

A still further object of the invention is to provide mechanism in combinationwith the wiper whereby its improper operation, or operation out of time with moving parts of the typesetting machine may be guarded against, thereby preventing foulingand stoppage of the machine.

The invention contemplates a wiper for the mouth of the metal pot of typesetting machines, particularly machines of the Mergenthaler variety, including a wiper element, and a linkage system for supporting the wiper element and automatically moving the same across the mouthpiece of the metal pot, such movement being controlled by cooperation of moving parts of the machine in timed relation to the operation of the machine parts.

In the accompanying drawings illustratingthe invention, in the several figures of which like parts are similarly designated,

Fig. 1 is a'fragmentary front elevation of a typesetting machine of the kind referred to, the device of the invention being shown in combination therewith.

Fig. 2 is an enlarged rear elevation of the wiper mechanism, and

Fig. 3 is an end view of the wiper mechanism as seen from the right hand end of Fig. 2.

Referring to Fig. l, the parts of the typesetting machine-which will be referred to specifically hereinafter are the mold disk A, the mouthpiece B ofthe mold pot,,the first elevator C, the secformed as a part of the plate H3.

0nd elevator D, and a part E of the machine frame. i

The device of the invention comprises a bracket l drilled as indicated at '2 toprovide holes for thereception of attaching bolts or screws 3 whereby it may be affixed to the frame E of the typesetting machine by'the utilization of openingsal-l ready provided therein. To the under face of the bracket 1 is adjustably secured by stud bolts 4 and nuts 5, or the like, a longitudinally slotted extension member '6 carrying a bearing block 1 drilled as indicated at 8 to receive two vertically arranged rods Qconnected at their upper ends by a plate l0 and at their lower ends by a plate I I to form a frameslidable inthe block I. Bolts l I extend through the transverselyslotted offset of the wiper blade or element l2 which is pro-- vided with a facing of asbestos l3 'or other suitable relatively soft non-inflammable wiping material. A spring I 4 connected with the plate l0 and extension I 6 has a tendency, normally, to force the wiper blade to its lowest position. This tendency to downward movement is counteracted by a lever l5 pivoted to, the bracket l by stud l6 and having one end engaging a roller I! carried in a U-shaped bearing element l8 which may be The opposite end. of the lever l5 has connected with it a spring l9 attached to the end of a rod 20 adjustable in the bracketv I, as is indicated by the screwthread 2| and nut 22. The force exerted by spring 19 is greater than that exerted by the spring l4, and hence by cooperation of the lever I5 with the roller I1, the frame carrying the m'per blade I2 is normally retained at the limit of its upward movement as shown particularly in Figs. 2 and 3.

' pled together beneath the .arm.3| .by means of a stud '33 against which the arm 3| normally bears, and by this, or other suitable means, a lost motion connection is provided, for a purpose hereinafter appearing. The plate 30 may be pinned to the shaft 26 as indicated at 34. 'Upward movement of the lever 25, and hence also of the lever l5 islimited by an overhanging lip 'offstanding roller 41.

brake to prevent rebound of the parts after engagement of the lever with it.

A second lever36 pivotedat 31 to the bracket I has one end connected by a slot and *bolt con nection 38 with a similarly slotted crank arm 39 adjustably clamped upon one end of a shaft 45' in the form shown, a stud 43 against which the member 42 normally bears in a manner similar to the lost motion connection provided by the parts 30, and 33, and for a similar purpose, as willlater appear. The plate 41 maybe pinned to the shaft 40, as indicated at 44. A pin 45 is provided to limit motion of the lever 3,6 in one direction. 7

Theaopposite end 'of the lever 36 is'curvedias indicated at 46 and carries at its extremity; an The curved portion 46is adaptedto engage a'icontact member '48 adjustably mounted by? means of an eccentric connection 49 upon'the' end of the lever l5, and; as will appear hereinafter, cooperation between these i parts 'servesto ensure return of theframe carrying the wiper blade to the upward limit ofits movement.

When the frame is at the upward limit bf'its movement,'the plate I 0 is in position to be engaged by a'dog 50 pivoted at 5| upon an' extension 52 0f the'bracket Land" this dog is 'provided with an 7 arm 53 standing on into'thepath of movement of the second elevatorD. The arm'53 is connected withthe extension BZ by a's'pring 54 which tends normally'to hold itagainst a "stop pin 55 and thus force 'the dog 5G int'o holding engagement with the plate 10, the'reby-to restrain the frame carrying the wiper blade from downward movement. A stud 56 on frame l pivotally supports ail-atch member 5'I arranged-to engage a pin 58 carried by' the dog 50, so that when the arm 53 is depressed andthe dog'thereby moved out of engagement-with the plate 0, the latch member 51 may,

drop-downward'so that its "notch- 59' will engage the pin 58 to hold the'dog in releasdposition.

Theroller 41, previously described-is so positioned upon the'lever 36 that when that end of "the lever is elevated; the roller 41 ;will engage'with and raise the-latch 51 to thus release its notch '5'9'from thepin '58 of-thedog, thereby freeing "the dog for engagement, iinder' 'the influence of its-spring 54,"with the plate l0 'of the'frame.

By virtue of the arrangement ofthe-holes 2 in the bracket 1, whereby the bracket is attached by the bolts 3 to'the-frameE- ofthetypesetting machine, the parts of the deviceof the-invention will be located respectively in proper position for effective operation during the'functioning of the typesetting machine. The wiper blade or element [2 will be so positioned that when it is. depressed, during axial outward movement of the mold-carryingfdisk A, it will pass between the inner'facelof the disk A and the vertically disposed face of the mouthpiece B, andits facing element l 3 will wipe over the 'mouthpiece and clear it of type metal as hereinbefore indicated. Moreover, the trips 7 V 32 and '42 will extend'to the front of the machine frame andinto the path of movement of the first elevator C. Likewise, the arm 53 will extend into the path of movement of a part bf the second felevator D Axial adjustment of the shafts 2B and 40 is'prov id ed for by, screw=adjust'edf'co'llars 65 and GI;

85 on the bracket l, which lip may also act as a The various means provided for adjustment of parts of the device of the invention, as hereinbefore described, will make it possible to properly accommodate the various parts of the device to the parts of the typesetting machinewith which they are designed for cooperation. 7

It will be understood that, as illustrated in Fig.

'1, the parts of the typesetting machine are in the elevator assumes, during the operation of the machine, three distinct positions, viz., its normal position, which-is substantially in line with the frame part its casting position, which is in line "with the mouthpiece B, and its upper transfer position, which is that illustrated in the drawingsl With the parts in the pc'sitionsshownfiri Fig. l,

it'being:understood'that the arm 53"of the device of the invention has been 'depressedand the latch '5'! is'in position to'holdthe'dog" 50 out of engagement with the plate 10 of .the frame of 'the wiper bladmperation' of the typesetting machine during its .normal' functioning will result in operation of the device of the invention asfollows.

When the first elevator C during its descent from theposition shown t'o normal positi'on s'trikesitrip 32 and depresses it, lever 25 will be similarly de-' pressed, and through its connection 'with -lever l 5 will mo ve'this lever out of engagement with the roller l1 and, very quicklyfto such aiow'ered position astc permit'the wiper blade l-ian'd itscarrying frame to be very quickly moved downward under the influence of the springf-|4 to thus-wipe over the'meuth' of the mou'th'piece-and clear it ofi typemetaL-it being -understood that at this time the mold disk A has been moved axially outwardly to its outermost position} thus lezavin'g a space suificien't to accommodate the wiper blade 12. was

the lever -l 5 moves downwardlyits oppositewhich is connected with the :spri'ngflS movesu war'dly an'd p'ut's the Sp'rin'g-IQunder tension, and inasmuch as the adjustment ofth'e trip extension 32 is s'uch'that it' i's cleared by the-first eleva'tor C immediatelyupon full depression of the lever 15,:as so-onasthis'clearing takes place the lever 15 will immediately movefupwardunderthe influence of {the spring 19, which as stated is stronger than the spring 14,- and-willreturn'the frame and withit the wiper blade 12 to-the l'imit of its upward movement. This upward anddownward movement of the wiper'blade' I 2 must, nee-'- essariiy, 'be very rapid, for the reason that the period of separation of the mold disk A from the mouthpiece B is very 7 short," and the wiping- 'action'must be-accomplishe'd during-this; period. 7

As the first elevator C continues 'its downward movement toward normal position; {it actuates trip 42 a to ther'ebyoperate lever '36, "the curved portion of 46 of which'c'oming' in contact with the member '48 ensures return of the f'rame and wiper blade [2 to the limit of upward movement.' I

It is to be noted that-proper *e'ccentricadjust mentof the member makes possible assurance that-the frame will'be fully elevated. Atthe-s'ame time, roller 41 raises the end of latch 51 and'frees dog '50 so; that, under the infiuence of span- 254, the dog may move from the -position illustrated in Fig; 1 to'that illustrated in'jFig; 25inwhich latter it"bperates to hold'the frame and wiper blade in uppermost' -p osition.

'- As the first ele'vator C movesfrom' normalposition to casting position and :thence'ba'ck to the transfer position illustrated in Fig. 1, the parts of the deviceof the invention will remain in the positions last described. However'i as the elevator C passes the -trips42and 32, during 'its upward movement, these trips will clear it by ,virtoe of theirlostmotion connections already described.

When, with the firstelevator C in its uppermost position, the second elevator D descends for the transfer of the matrices to it, the second elevator D will depre'ssathe end of arm 53 to free the dog from the plate I!) of the frame of thewiper blade and thus permit the latch member 51 toengage the pin 58 to hold the dog in the position hereinbefore described and illustratedin Fig. 1, the parts of the device of the invention now being so set as to perform .another. wipingoperation; as described, upon the next descent of the first elevatorC.

From the foregoing, it will be apparent that the'deviceof the invention is. not only relatively simple in its construction'and mode of operation, but that it embodies such features of design and method of operation that its.interference with the proper functioning of the typesetting machine is madeipractically impossible. For example, the wiper blade 12 can never remain in its depressed position long enough to foul the mold disk A upon its return from its outermost position, because the lever 36 automatically returns the wiper blade to its elevated position prior to the commencement of the return movement of the mold disk.

Moreover, all parts of the device being operated in timed relation to and by moving parts of the typesetting machine itself, the operation of which is timed to the type casting operation, a failure in timing of the wiping mechanism can occur only due to improper adjustment of its parts or failure in timing of the parts of the typesetting machine from which the parts of the wiping mechanism derive their motion.

Various changes and modifications are contemplated as within the spirit of the invention and the scope of the following claims.

. I claim:

1. A wiper for the vertically disposed mouth of the metal pot of typesetting machines, including a wiper element adapted to be advanced and retracted over the mouthpiece of said metal pot, means supporting said element for rectilinear reciprocating movement in operative relation to said mouthpiece, means for automatically moving said wiper element in both directions over said mouthpiece, and means operated in timed relation to the movement of the mold disk of the machine for controlling actuation of said automatic moving means, said automatic moving means operating independently of direct connection with the moving parts of the machine.

2. A wiper for the vertically disposed mouth of the metal pot of typesetting machines, including a wiper element, means for supporting said wiper element in normal position above the mouthpiece of the metal pot, resilient means for automatically moving said wiper element over said mouthpiece and back to normal position, and means operated in timed relation to the movement of the mold disk of the machine for controlling the actuation of said resilient means.

3. A wiper for the vertically disposed mouth of the metal pot of typesetting machines, including a wiper element, means for mounting said wiper element for reciprocative movement whereby it may be advanced and retracted over the mouthpiece of' said metal p'ot, resilient means for imparting said reciprocative movement to the wiper element in both directions, and means oper v ated in timed relation. to-the' movement of the mold disk ofthe machin'elfor controlling the actna ative eiTect of said resilient means. I

4'; A wiper for :the vertically disposed mouth .ofxthe 'metal' pot of typeset-tingmachines; includingajwiper element adapted to be advancedand retracted over the mouthpieceof: said metal pot, means for mounting saidwiperelement iii-operative relation to said mouthpiece, resilient means operative to reciprocate said wiper element, over said mouthpiece in both-directions,- and meansfor controlling the reciprocation of said. wiper element un'der the influence of said resilient means, said controlling means, including members actu ated byythe matrix elevator mechanism of said machine.

:.-5-. A per or t the metal pot of typesetting machinea'includinga wiper element, means for moun'ting said wiper element for rectilinear reciprocating movement with respect to-the mouthpiece of said metal pot,

means for imparting such movementto said wiper element, 7 lever mechanism for controlling the movementof said wiper element in timed relation to the movement of the mold disk of said machine, and means operable by and in response to movement of the matrix elevator mechanism of said machine for actuating said lever mechanism.

6. A wiper for the mouth of the metal pot of typesetting machines, including a wiper. element arranged for vertical reciprocation with respect to andagainst the mouthpiece of said metal pot, resilient means for imparting such movement to vertically disposed mouthiof the wiper element, means operable by the first elevator member of said machine for permitting actuation ofsaid wiper element by said resilient means, means for restraining said wiper element against movement, and means operable by the second elevator member of said machine for releasing said restraining means.

7. A wiper for the mouth of the metal pot of typesetting machines, including a wiper element mounted for reciprocation over the mouthpiece of said metal pot, means for imparting such reciprocation, a lever for normally holding said wiper element in position remote from said mouthpiece, means operable by a member of said machine for displacing said lever to permit reciprocation of said wiper element under the influence of said reciprocation-imparting means, a lever actuated by said member of the machine for insuring return of said wiper element to its initial position, and means additional to said lever and releasable in timed relation to the normal cycle a of operation of the machine for restraining said wiper element against reciprocation.

is mounted for vertical reciprocation with respect to the mouthpiece of said metal pot, a lever cooperating with said frame and functioning normally to prevent movement of said wiper element,

a trip member cooperating with said lever and operable in response to movement of the first elevator member of the machine to release said frame for reciprocation, means connectedwith said frame and lever, respectively, for imparting such reciprocation, a second lever operable to insure return of said frame to the upper limit 75 01' its movement, atrip member cooperating-with said second lever and operable: in response to-Iurther movement of said first elevator'member-to actuate said second'lever, aidog for retaining said framehin its upperrposition, an arm-connected with said dog and actuated-by. the-second elevator member of the machine to release saiddog,

and a latch member cooperating withsaidvdogto hold it out of irame e'ngagin'g"position, said latch member releasable :by cooperation therewith of said second lever.

9. A wiper for the mouth of the metal pot of atypesetting machine, including" a wiper-ale ment,'means mounting said' wiper--"element for movement towards and away from the metal pot, resilient means tending to move said wiper element to and across the mouth of the metalpot, a second resilient means tending'tomove said wiper element away from the metal pot, said second resilient means :being of-greater power than saidfirst resilient means, thereby normally retaining the wiper element at a point' remote from the mouth of the metal pot, and means positioned for actuation by apart of the typesetting machine for momentarily rendering said second resilient means inoperative,-- whereby said wiper element is moved to the metal pot by said first resilient;vvmeanszland- ,thenz restored touits normal position by :the: second resilient: means.

.10; Inga wiper: for-f-thermetai poticofsa typesettingmachine, thecombination with a wiper element; and framepmeans,v Supportingthe; same 'for vertical reciprocation betweenzamupper inoperative position and; a lower, mouth-wiping position, of' spring means tending to move said frame means. and wiperelement downward, aiifting member andspring means'normally retaining the same inposition ltQ' prevent downward movement of said frame-means and wiper element. by

thefirst spring means, and means positioned for 

